RM-Z450

MSRP $8,099

Two years ago, Suzuki stunned the world with the first fuel-injected motocross racebike. It was more than unique... it was a winner. Around the globe, the RM-Z450 helped racers collect wins and trophies, fiercly competing in venues from the World MX1 series to America's AMA Supercross championship.

Now the question: Is there any way to improve on this incredible success? Sure there is. But you have to be Suzuki to do it.

Take a look at the 2010 RM-Z450, a thoroughly updated, cutting-edge open-class motocrosser that's more potent than ever. Across-the-board engine upgrades boost power from awesome to awe-inspiring. Detatiled frame and suspension modifications improve an already sharp-turning racebike. As a racer, you want quick, laser-accurate steering and confidence-inspiring high-speed handling in one package. And you want a high performance machine whose racing pedigree enables it to be competitive right out of the crate.

Engine Features

18-pin magneto-rotor senses feedback on crankshaft position, rotation speed and stroke which is fed back to the ECU to calculate optimum injection and ignition timings.

5-Speed Transmission makes the RM-Z450 versatile for various terrain conditions and features a link type shifting mechanism

Battery-less fuel injection system features a single-phase all-charging system with which the magneto supplies all of the necessary power

Combustion chamber designed for strong low-to-mid range response as well as top-end pull. Narrower intake and exhaust valve angle guides along with increased squish areas improve air/fuel mixing and faster flame-propagation speed when mixture ignites

Electronic Fuel Injection offers better roll on power and strong low-to-mid range power. KEIHIN throttle body specifically designed for motocross. Fuel is delivered via an internal fuel pump and is a battery-less system

Intake port angle and cam timing result in reduced intake resistance and heightened intake efficiency. Exhaust port and cam timing are designed to regulate exhaust pulses for maximum engine performance

KEIHIN fuel pump located inside the fuel tank provides stable pressure delivery to operate the fuel injection system

Semi-dry-sump lubrication system features separate oil chambers for the transmission and crankshaft using the transmission as the oil sump, allowing low crankshaft placement, reduced engine height and a low center of gravity

Transmission Features

Hot start lever is located on the right hand side of the handlebar for easy operation while holding the clutch

Chassis Features

Showa rear shock absorber is designed to deliver a controlled feel and increased bottoming resistance

2-tone molded-plastic radiator shrouds give the RM-Z450 a slim feel and stylish look for 2010 while also complimenting an all-new graphics design and color way

Aluminum fuel tank houses a KEIHIN fuel pump for optimum performance and a factory bike look

Aluminum-alloy swingarm for reduced weight and maximum terrain-traversing performance over bumps

Aluminum-alloy twin spar frame is lightweight and has optimum rigidity balance for incredibly agile handling and unmatched performance over bumps

Footpegs include maximum clearance between the mounting bracket and footrest to prevent mud from caking up

Front fender incorporates a sloped-down shape to efficiently guide wind to the front number plate air ducts for improved cooling performance. Rear fender incorporates air intakes on both sides for heighten intake efficiency

Gold-colored chain and axle blocks give a full factory look

Race inspired brake rotors provide better cooling performance and increased mud deflection in muddy conditions

Showa cartridge-style front fork is fully adjustable for rebound, compression and preload settings and designed for reduced weight and improved shock absorption

Slim riding position opens up the cockpit for additional room to allow the rider to actively take control of the machine

American Suzuki Motor Corporation makes every effort to present the most current specifications and product features. Because of our policy of continual improvement, changes may be made in equipment, availability, specifications and features without notice or obligation.
  • RM-Z450MSRP: $8,099
Chassis:  
Brakes FrontDisc brake
Brakes RearDisc brake
ColorSolid Black/Champion Yellow
Curb Weight
112.5 kg (248 lbs)
Final DriveChain
Fuel Tank Capacity6.2 L (1.6 US gal)
Ground Clearance325 mm (12.8 in)
Overall Length2190 mm (86.2 in)
Overall Width830 mm (32.7 in)
Seat Height955 mm (37.6 in)
Suspension FrontSHOWA 47mm telescopic, pneumatic/coil spring, oil damped
Suspension RearSwingarm, link type, SHOWA piggyback-reservoir shock
Tires Front80/100-21
Tires Rear110/90-19
Transmission5-speed constant mesh
Wheelbase1495 mm (58.9 in)
Engine:  
Bore Stroke96.0 mm (3.780 in) x 62.1 mm (2.445 in)
Compression Ratio12.2:1
Engine449 cc, 4-stroke, liquid-cooled, DOHC
Fuel SystemFuel injection
IgnitionElectronic ignition (CDI)
LubricationSuzuki Advanced Sump System
StarterPrimary kick
Warranty:  
WarrantyNo Warranty
American Suzuki Motor Corporation makes every effort to present the most current specifications and product features. Because of our policy of continual improvement, changes may be made in equipment, availability, specifications and features without notice or obligation.